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Topic: Sticky Throw out bearing? (Read 2327 times)

In my 69 Z my clutch pedal engages disengages smoothly while the car is cool. After the car is hot the pedal gets "sticky" when the pedal gets near the floor. This does not effect shifting but is very annoying. The TOB is not squealing or sound like anything is galled.

I had the same problem. In my case the clutch fork bearing retainer was not riveted on the fork correctly. It was not letting the bearing center itself over the tranny output shaft, adding a lot of side pressure. As I worked the clutch during driving the bearing would really heat up. When I tore it down to find the problem the bearing was ready to fall apart from wear. Not sure of the brand of fork but it was after market so there are more out there!

I had the same problem. In my case the clutch fork bearing retainer was not riveted on the fork correctly. It was not letting the bearing center itself over the tranny output shaft, adding a lot of side pressure. As I worked the clutch during driving the bearing would really heat up. When I tore it down to find the problem the bearing was ready to fall apart from wear. Not sure of the brand of fork but it was after market so there are more out there!

That is a good lead on the problem. Sounds like that could be it. The clutch fork I am guessing I'd the one that the car came with from GM but not positive.

John after thinking more about your suggestion. Is this a situation that makes the pedal feel like it is sticking on something when the pedal is close to the floor. Is this a possible result of lack of grease? If so what damage can result?

John after thinking more about your suggestion. Is this a situation that makes the pedal feel like it is sticking on something when the pedal is close to the floor. Is this a possible result of lack of grease? If so what damage can result?

Could be a number of things, including lube worn off the clutch fork pivot ball stud and its mating recess in the fork.

Maybe a worn input shaft bearing retainer cover? I've had one with a worn groove in it causing more of a hanging returning clutch along with a not so smooth peddle return.The groove wasn't that deep neither to cause the problem.